212200121020020 has 96 divisors (see below), whose sum is σ = 680860871378688. Its totient is φ = 48372850225152.

The previous prime is 212200121019917. The next prime is 212200121020067. The reversal of 212200121020020 is 20020121002212.

It is a super-2 number, since 2×212200121020020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677106589 + ... + 677419908.

It is an arithmetic number, because the mean of its divisors is an integer number (7092300743528).

Almost surely, 2^{212200121020020} is an apocalyptic number.

212200121020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200121020020 is an abundant number, since it is smaller than the sum of its proper divisors (468660750358668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212200121020020 is a wasteful number, since it uses less digits than its factorization.

212200121020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354526889 (or 1354526887 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212200121020020 its reverse (20020121002212), we get a palindrome (232220242022232).

The spelling of 212200121020020 in words is "two hundred twelve trillion, two hundred billion, one hundred twenty-one million, twenty thousand, twenty".